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Unless you´re an UL Fag, you should get one of those German Army sleeping mats, and/or the "Elefantenhaut" by the German army, to put underneath your sleeping pad.
I guess there´s other stuff also, but I´m German and you can get those 2 items for cheap here, and they are pretty great to have.
Also, I heard good things about the Savotta Sleeping Pad. It´s not inflatable.